● Data Modeling and Data Models.
● Business Rules (Translating Business Rules into Data Model Components).
● Emerging Data Models: Big Data and NoSQL.
● Degrees of Data Abstraction (External, Conceptual, Internal and Physical model).
What is a Database?
Database creation steps
Benefits of using Database
Types of Table Relationships
What is a Database model
Database Management System
Users of Database
MS Access
Whenever you make a list of anything – list of groceries to buy, books to borrow from the library, list of classmates, list of relatives or friends, list of phone numbers and so o – you are actually creating a database.
An example of a business manual database may consist of written records on a paper and stored in a filing cabinet. The documents usually organized in chronological order, alphabetical order and so on, for easier access, retrieval and use.
Computer database are those data or information stored in the computer. To arrange and organize records, computer databases rely on database software
Microsoft Access is an example of database software.
Data & Information, Drawbacks of File system, What is Database Management Systems, What is the need of DBMS, Examples of DBMS, Database Types, Applications of DBMS, Advantage of DBMS over file system, Disadvantages of DBMS, DBMS vs. File System
● Data Modeling and Data Models.
● Business Rules (Translating Business Rules into Data Model Components).
● Emerging Data Models: Big Data and NoSQL.
● Degrees of Data Abstraction (External, Conceptual, Internal and Physical model).
What is a Database?
Database creation steps
Benefits of using Database
Types of Table Relationships
What is a Database model
Database Management System
Users of Database
MS Access
Whenever you make a list of anything – list of groceries to buy, books to borrow from the library, list of classmates, list of relatives or friends, list of phone numbers and so o – you are actually creating a database.
An example of a business manual database may consist of written records on a paper and stored in a filing cabinet. The documents usually organized in chronological order, alphabetical order and so on, for easier access, retrieval and use.
Computer database are those data or information stored in the computer. To arrange and organize records, computer databases rely on database software
Microsoft Access is an example of database software.
Data & Information, Drawbacks of File system, What is Database Management Systems, What is the need of DBMS, Examples of DBMS, Database Types, Applications of DBMS, Advantage of DBMS over file system, Disadvantages of DBMS, DBMS vs. File System
An perspective into the raise of NoSQL systems and an comparison between RDBMS and NoSQL technologies.
The basic idea of the presentation originated while trying to understand the different alternatives available for managing data while building a fast, highly scalable, available, and reliable enterprise application.
Data Models [DATABASE SYSTEMS: Design, Implementation, and Management]Usman Tariq
In this PPT, you will learn:
• About data modeling and why data models are important
• About the basic data-modeling building blocks
• What business rules are and how they influence database design
• How the major data models evolved
• About emerging alternative data models and the needs they fulfill
• How data models can be classified by their level of abstraction
Author: Carlos Coronel | Steven Morris
The webinar was conducted by Bhuvan Gandhi and Vishwas Ganatra on 22-23 August, 2020. It was powered by Encode - The coding club of PDPU.
Bhuvan Gandhi - https://github.com/bmg02/database-workshop-encode
Vishwas Ganatra - https://github.com/vishwasganatra/Encode-database-workshop
I'm Muhammad Sharif Database administrator and Database system Engineer from SKMCHRC Lahore.
I am good in databases and Research in data science
This book title: database systems handbook was purely written by Muhammad Sharif.
Database management systems
Database systems handbook
#Muhammad Sharif
#Database_systems_handbook
Complete book Database management systems Handbook 3rd edition by Muhammad Sharif
#DBMS
#RDBMS
#DATABASE MANAGEMENT SYSTEMS HANDBOOK
#DATABASE COMPLETE BOOK HANDBOOK
DATABASE SYSTEMS BY MUHAMMAD SHARIF
DATABASE SYSTEMS HANDBOOK BY MUHAMMAD SHARIF
A work breakdown structure (WBS) is a key project deliverable that organizes the team's work into manageable sections. The Project Management Body of Knowledge (PMBOK) defines the work breakdown structure as a "deliverable oriented hierarchical decomposition of the work to be executed by the project team."
you will learn how to create your own methods with or without return values, invoke a method with or without parameters, and apply method abstraction in the program design.
Java presention Inheritance present By Showrov AhamedMd Showrov Ahmed
The extends keyword indicates that you are making a new class that derives from an existing class. The meaning of "extends" is to increase the functionality. In the terminology of Java, a class which is inherited is called parent or super class and the new class is called child or subclass.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
4. 4
There are four structural types of database
management systems:
Hierarchical databases.
Network databases.
Relational databases.
Object-oriented databases.
Slide:4
5. 5
A hierarchical database model is a data model in which the data is organized
into a tree-like structure. The data is stored as records which are connected to
one another through links. A record is a collection of fields, with each field
containing only one value.
Hierarchical databases
Slide:5
7. 7
Advantages of Hierarchical Organisational Structure:
Everything in Hierarchical Organisational Structure is going to be organized and stabilized
and there is less likely to get authority and obligation disordered. All the employees know
exactly what position they are in and also know what job they have to do. Fixed rules of
intra-organization procedures and structures is set and usually written in language, which
leaves no discretion for interpretation. Most importantly, under this organisational
structure, goals are clearly defined turning out to be suitable for all type of businesses. Also
the objective will be clear so task can be done in time.
Slide:7
8. 8
Disadvantages of Hierarchical Organisational Structure:
However it barely allows flexibility, long term-planning, and creativity, ending with stiffness and
dictatorship in management. Some leaders may be overburdened while some coordinates stay
idle; some departments may pay too much attention to local target and interests but ignore
overall objective and interests; schedule of the whole project might be affected extremely when
some leaders are out of work. Moreover, this hierarchical organisational structure leaves little
communication between employees causing a lack of team spirit. So workers may be jealousy
when one gets promoted. They may not agree on the changes within the company and unwisely
express that. This way, moral of organization is going to get bad.
Slide:8
9. 9
The network model is a database model conceived as a flexible way of
representing objects and their relationships. Its distinguishing feature is
that the schema, viewed as a graph in which object types are nodes and
relationship types are arcs, is not restricted to being a hierarchy or
lattice.
Network databases
Slide:9
10. 10
Advantages of using Network databases:
Simplicity:The network model is conceptually simple and easy to design
Ability to handle more relationship types
Ease of data access
Data Integrity
Data Independence
Slide:10
11. 11
System complexity:
In a network model, data are accessed one record at a time. This males it
essential for thedatabase designers, administrators, and programmers to be
familiar with the internal datastructures to gain access to the data. Therefore, a
user friendly database management systemcannot be created using the network
model
Lack of Structural independence:
Making structural modifications to the database is very difficult in the network
database modelas the data access method is navigational. Any changes made to
the database structure require theapplication programs to be modified before
they can access data. Though the network modelachieves data independence, it
still fails to achieve structural independence
Disdvantages of using Network databases Slide:11
12. 12
A relational database is a digital database whose organization is based on
the relational model of data, as proposed by E. F. Codd in 1970. The various
software systems used to maintain relational databasesare known as
a relational database management system (RDBMS).
Relational databases
Slide:12
13. 13
Advantages of using relational databases:
Ease of use
Flexibility
Precision
Security
Data Independence
Data Manipulation Language
Slide:13
14. 14
Disadvantages of using relational databases:
Performance: A major constraint and therefore disadvantage in the use of relational
database system is machine performance
Physical Storage Consumption: It is, therefore common in relational databases to tune the
databases and in such a case the physical data layout would be chosen so as to give good performance in the
most frequently run operations. It therefore would naturally result in the fact that the lays frequently run
operations would tend to become even more shared.
Slow extraction of meaning from data: if the data is naturally organized in a
hierarchical manner and stored as such, the hierarchical approach may give quick meaning
for that data.
Slide:14
15. 15
An object database (also object-oriented databasemanagement system,
OODBMS) is a databasemanagement system in which information is
represented in the form of objects as used in object-
oriented programming. Object databases are different from
relational databases which are table-oriented.
Object-oriented databases
Slide:15